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(NoModeL) A. HANCOCK & H. S. HEATH.

Liquid Meter.

Patented Nov. 9, I880.

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ARTHUR HANCOCK AND HUBERT S. HEATH, OF 406 EUSTON ROAD, MIDDLE- SEX COUNTY, ENGLAND.

LIQUID-METER.

SPECIFICATION formingpart of Letters Patent No. 234,275, dated November 9, 1880. Application filed May 15, 1880. (No model.) Patented in England May 23(1879.

To all whom it may concern:

Be it known that we, ARTHUR HANCOCK and HUBERT SAMUEL HEATH, both of N o. 406 Euston Road, in the county of Middlesex,

England, have invented a new and useful Improved Liquid-Meter, (for which we have obtained a patent in Great Britain, No. 2,056, bearing date May 23, 1879,) and of which the following is a specification.

This invention relates to meters for measuring and registering the volume of water or other liquid passed through them, the chief objects of the invention being to obtain simplicity in the construction of the apparatus I 5 and accuracy and durability in its operation.

The accompanying drawings show the construction which we adopt.

Figure 1 is a longitudinal section, and Fig. 2 is a transverse section, of the meter; and Fig.

3 is a front view of the connections for working the slide.

The liquid enters by a supply-pipe, A, into the regulating-chamber B, in which is a float, 0, connected to the arm of a stop-cock, a,

2 5 which, being closed more or less as the float C rises, stops or throttles the supply, so as to govern the pressure within the meter. From the regulating-chamber B the liquid flows by a passage, 1), to the middle of three ports ar- 0 ranged on a horizontal facing and governed by a slide, D. This slide works within a chamher, from which opens the outlet E of the meter. The two side port-s, d d, communicate, respectively, with two compartments, G G into 3 5 which the body of the meter is divided by a partition, F, which, not reaching the top of the meter, leaves'free communication between the upper parts of the two compartments. In each compartment is afloat, g 9 fixed at the 40 opposite ends of an equal-armed lever or swaybeam, H. The rockingaxis h of this lever extends into-a front compartment, K, and to its extended part is fixed an arm, L, having at its lower end a slot in which works an anti- 4 5 friction-roller on a crank-arm of a rocking sh aft, M. This arm, extended upward, carries a tumbling weight, N, which can fall against either of two spring-stops, a 01?. The extended axis h also carries a spring-pawl engaging with the ratchet-wheel of an ordinary counter, 0,

provided with dials and indices to register gallons or other units of liquid-measure, and multiples thereof, in the usual way, the dials being Visible through a glass, k, fixed in the front of the meter. The rocking shaft M extends into the compartment containing the slideD, and has a wing-arm, m, projecting down from it into a gab on the upper side of the slide D, the gab being wider than the wing.

In a meter constructed as above described we find certain details of advantage, which details are as follows: In the supply-pipe A we introduce a filter or sieve, consisting of a piece of pipe, f, closed at the top, projecting upward, and drilled with a number of small holes 6 over its surface. This prevents access of dirt or grit to the meter, and as the impurities arrested by it are deposited on its outer surface it can be readily cleansed. The regulatingcock a,'being for the purpose of throttling the supply, is made a somewhat loose tit, so that the float C can freely work it, and this float has a guide-rod, 0, working freely in a guidetube at the bottom of the regulating'chamber B. The slide D is made, as shown, with its 7 end curving outward, so that the liquid issuin g from either side port into the slide-chamber is deflected laterally, and issues by the outlet E without rising in the slide-chamber to the height of the rocking shaft M. This rock- 8o ing shaft M, as well as the rocking axis h of the sway-beam H, where it passes through the partition, is coned to fit as a valve against a conical seating in the partition, and is pressed into its seat by alight spring, S, at the back end of the axis. Behind the outlet-mouth E there is a passage terminating in an open slit, 0, by which liquid can escape it there be a greater discharge than can issue by the mouth E.

The operation of the meter may be described 0 as follows: The liquid is supplied by the pipe A, and, being filtered in its passage by the filter f, and throttled more or less by the stopcock a, enters the regulating-chamber B. If it enters this chamber faster than it can is- 5 sue therefrom by the passage 12 the float C rises, still further throttling the supply. Thus, as there are at the top of the chamber B apertures t for free passage of air, there can never be greater pressure of liquid in the mo meter than what is due to the height of column in B, floating U at or about its normal level. \Vithiu the meter we will suppose the liquid to be low in the compartment G and high in G, the float 9 therefore being down and g being up, the beam H canted so that its arm L is in the position shown in Fig. .i, and consequently the tumbling-weight N resting on its stop 11. The slide 1) has, thereiore, by the wing m, been moved to the right, uncovering the port 11 and making a communication from b to 11. Liquid from It now flows by the passage I) and port 11 into the compartment G while liquid flows from (i by the port d into the slide-chamber, and issues thence by the outlet E. After a certain time the level of the liquid in G has risen, and that in G has sunk so far that the floats y y are sum ciently out of balance toovercome the gravity of the weight N, which, as it begins to move upward frotn the stop )1, becomes less effective till it passes the vertical line over the axis M, after which it becomes eti'ective in the opposite direction, with force increasing as it moves. The floats are thus caused to make a rapid stroke, g rising and g descending. At the same time the axis M, turning rapidly from its one extreme to the other, the wing-arm m on it acting during the latter part of its stroke against the left side of the gab in the slide 1), 1 moves the slide suddenly to the left, so as to l uncover the port d and bring (1 into coml tnunication with I). The com mrtmentfl now i receives a supply of liquid, while liquid is dis 1 charged from G", and after a time the reversal i of action ensues, as above described.

Each

stroke in one direction of the beatn 11 causes a. movement to be imparted to the counter O by means of the pawl on the arm of h acting on the ratchet-wheel of the counter. The charge of the compartments G and G for each such stroke being a known quantity, the counter 0, which registers the number of these strokes, records the quantity of liquid that passes through the meter.

Having thus described the nature of the said invention, and in what manner the same is to he carried into practical effect, we claim-- 1. In liquid-meters, the combination of the meter divided into two chambers by a vertical partition, F, the sway -beam provided with the floats at opposite ends thereof, the slide 1), intermediately connected with the swayheam by the slotted arm and rocking shaft with tumbling-weight, and the ports (1 d, substantially as and for the purpose specified.

2. In combination with the sway-beam H, floats y (1 slide I), aml ports (1 (1*, the arm h operating on a counter by means of a pawl for registering the movements of the swaybeam and floats, substantially as described.

:5. In combination with the compartments G G", sway-beam H, floats g {1 slide 1), and ports d 11'', the regulating-vessel B, float U, and regulating cock or valve a, the whole constructed and operating substantially as and for the purpose described.

In testimony whereof we have signed our names to this specification, in the presence of two subscribing witnesses, this 30th day of April, A. I). 1880.

ARTHUR HANCOCK. HUBERT SAMUEL HEATH. Witnesses CHARLES DENToN ABEL, ()LIVER IMRAY. 

